installer

--Setting the colors
term.setBackgroundColor(colors.white)
term.setTextColor(colors.cyan)
term.clear()
term.setCursorPos(1,1)
loading = "yes"
installing = "true"
--Functions
local function centerPrint(text)
  local x, y = term.getSize()
  local x2, y2 = term.getCursorPos()
  term.setCursorPos(math.ceil((x/2) -(text:len()/2)), y2)
  write(text)
  term.setCursorPos(1,1)
end
local function downloadFiles(url, path)
for i = 1, 3 do
  local response = http.get(url)
  if response then
   local data = response.readAll()
   if path then
    local f = io.open(path, "w")
    f:write(data)
    f:close()
    sleep(2)
    installing = "false"
   end
   return true
  end
end
centerPrint(error("download: Download Failed"))
return false
end


local function load(yLoc)
  w, h = term.getSize()
  local x2, y2 = term.getCursorPos()
  loc = math.ceil(w/2)
  loc2 = yLoc
  while loading == "yes" do
  term.setCursorPos(loc-3, loc2)
  print("|O---|")
  term.setCursorPos(loc-3, loc2)
  sleep(0.5)
  print("|-O--|")
  term.setCursorPos(loc-3, loc2)
  sleep(0.5)
  print("|--O-|")
  term.setCursorPos(loc-3, loc2)
  sleep(0.5)
  print("|---O|")
  term.setCursorPos(loc-3, loc2)
  sleep(0.5)
  print("|--O-|")
  term.setCursorPos(loc-3, loc2)
  sleep(0.5)
  print("|-O--|")
  term.setCursorPos(loc-3, loc2)
  sleep(0.5)
 end
end
--Main Code
w, h = term.getSize()
centerPrint("RedOS Installer")
paintutils.drawLine(1, 2, w, 2, colors.blue)
term.setTextColor(colors.cyan)
term.setBackgroundColor(colors.white)
term.setCursorPos(1, 4)
centerPrint("Installing Files....")
if not fs.exists(".redos") then
    fs.makeDir(".redos")
    if not fs.exists(".redos/os") then
        fs.makeDir(".redos/os")
    end
    if not fs.exists(".redos/programs") then
        fs.makeDir(".redos/programs")
    end
end
parallel.waitForAny(function() downloadFiles("https://raw.github.com/redstonefreak589/redos/master/RedOS", ".redos/os/RedOS") end, function() load(9) end)
parallel.waitForAny(function() downloadFiles("https://raw.github.com/redstonefreak589/redos/master/Browser", ".redos/programs/browser") end, function() load(9) end)
parallel.waitForAny(function() downloadFiles("https://raw.github.com/redstonefreak589/redos/master/desktop", ".redos/os/desktop") end, function() load(9) end)
parallel.waitForAny(function() downloadFiles("https://raw.github.com/redstonefreak589/redos/master/hashing", ".redos/os/hashing") end, function() load(9) end)
centerPrint("Download Success!", 9)
sleep(2)
term.setCursorPos(1,4)
term.clearLine()
centerPrint("Do you want to run RedOS on startup? Y | N")
event, key = os.pullEvent("key")
if key == 21 then
    if fs.exists("/startup.old") then
        fs.delete("/startup.old")
    end
    if fs.exists("/startup") then
        fs.move("/startup", "/startup.old")
    end
    downloadFiles("https://raw.github.com/redstonefreak589/redos/master/startup", "startup")
    term.setBackgroundColor(colors.black)
    term.setTextColor(colors.white)
    os.reboot()
elseif key == 49 then
    downloadFiles("https://raw.github.com/redstonefreak589/redos/master/redos-start", "redos-start")
    term.setBackgroundColor(colors.black)
    term.setTextColor(colors.white)
    os.reboot()
end